Battle of Numata Castle

The Battle of Numata Castle occurred on 20 October 1600 during the Sengoku Jidai era. During the struggle between Ieyasu Tokugawa and Mitsunari Ishida, Sanada daimyo Masayuki Sanada and his son Yukimura Sanada sided with Mitsunari's Western Army, while Masayuki's other son Nobuyuki Sanada sided with his wife, Lady Ina, and backed the Tokugawa. While the main armies of both factions met in battle at Sekigahara, Masayuki and Yukimura Sanada led an army to conquer Numata Castle, the home of Nobuyuki Sanada and Ina.

Yukimura was ordered to serve as a decoy, defeating Tadashige Suzuki to draw Nobuyuki's attention to the southwest garrison. At the same time, the ninja Kunoichi would lead a sneak attack on the northern garrison, and it would then be Yukimura's goal to advance on Numata Castle. Masayuki asked Ina if she would let him into the castle to visit his son, but she stated that she had explicit orders not to let her father through; Masayuki warned her that he would use force. Yukimura and Kunoichi then carried out their plans, surprising the garrison. Soon, Masanobu Honda arrived with Tokugawa reinforcements to assist in the castle's defense, and Yukimura decided to lead a unit against the reinforcements. Bitchu Kozuki later arrived with some Sanada reinforcements, assisting the besiegers.

Yukimura routed the reinforcements, and he also prevented Tadakatsu Honda from advancing to attack his father. The Sanada forces proceeded to advance into the main enemy camp, where Yukimura cut down his brother and then Ina. Just as Ina was conceding defeat, a messenger arrived, informing Yukimura that Mitsunari had lost the Battle of Sekigahara, rendering the victory useless.